High pressure sodium vapor (HPS) lights, similar to LPS lights, are a specific type of gas-discharge light (also known as a high intensity discharge, HID or arc light). In some cases (particularly with older HID bulbs) dimming can cause the light to prematurely expire. Generally they exhibit an end-of-life phenomenon known as cycling where the lamp goes on and off without human input prior to eventually failing entirely. “What lighting source should I use for my licensed cannabis grow? Led also has an effect on color of the buds. HPS Lights: High Pressure Sodium lights have often been seen as the best grow light available for amateurs … Low and High Pressure sodium lights produce a very narrow spectrum of light (particularly LPS lights). That said, the price of LEDs are rapidly decreasing and as they continue to be adopted en masse the price will continue to drop. Growers who combine different lighting systems create more complexities in their grow rooms, more room for error, and many more variables to contend with. LEDs are very efficient relative to every lighting type on the market. It is particularly useful for outdoor lighting where energy efficiency is at a premium (such as with municipalities lighting the streets or other common areas like parking lots.) As sodium vapor lights age, more and more voltage is required to produce the same amount of light until eventually the voltage exceeds the fixed resistance provided by the ballast and the light goes out (fails). High pressure sodium bulbs may flicker and/or cycle on and off as the bulb reaches the end of its useful life. LED lifespan can be greater than 100,000 hours (more than four times that of LPS or HPS). You make a good point! These lights are for production in layers (low ceiling) and interlighting, meaning lights throughout the canopy. 6. The extremely low maintenance and replacement costs with LEDs is actually a major cost benefit over the long term. For an interesting take on the history of street lighting in the United States read here. Is that the only thing it determines? Snow falling on traditional lights like HID will melt when it comes into contact with the light. The big problem I had was odor control. Required fields are marked *. LEDs have an extremely long lifespan relative to every other lighting technology. Check out the results below! Where can you find the right ratio of PAR for one plant ? LPS lamps emit a monochromatic yellow light which very much inhibits color vision at night. HPS S/P ratio = 0.5. HPS lamps are better but are still surpassed by virtually every other light on the market. The HPS vs LED grow light matchup is a clash of the titans. A 600w HPS light can produce up to 150 to 300 grams in optimal grow environments, which is 0.5 grams per watt or less. As indoor growing has become increasingly popular, lighting has become more of a concern. The arc tube is made of aluminum oxide and the sodium metal is combined with several other elements like mercury which counter-balances the yellow glow with some white to light blue emissions. The bottom line is that having lost their traditional advantage of being the most energy efficient bulb on the market, there’s very little reason to use a sodium vapor light when LED lighting is available. Much like fluorescent lights, modern LED lights are a wonderful solution for gymnasiums, warehouses, schools and commercial buildings. The up-front costs of an LED lighting project are typically greater than most of the alternatives. They lose out to LEDs in many cases because their system efficiency is often much lower due to losses associated with omnidirectional light output and the need to redirect it to a desired area. To begin, let s unpack the information that exists on this complex topic. Since then they have gradually expanded their applications to include traffic lights, lighted signs, and more recently, indoor and outdoor lighting. It is only recently with the advent of affordable and prevalent LED lighting that they are being consistently surpassed in terms of energy efficiency and lifespan. Use a 54-60 watt LED bulb to replace these. It is an inevitable fact that once you get keen on the growing business, you will immerse yourself into the focus of which is the best grow lights. They are a bit blue for flowering, but is just happens that I have a strip LED with 12 x 2 watt pure 660nm wavelength, which I am hanging between the two flood lights. LED Vs HPS Grow Lights comparison with regards to; I can also witness an improving effect on smell and taste – better photosynthetic abilities due to the leds possibly? Sodium vapor lighting typically requires a “warm-up” period in order to evaporate the internal gas into plasma. I recently finished 2 grows of autoflowers, 5 plants each. The principal difference between low and high pressure sodium lights is the operating pressure inside the lamp. This is typically an advantage because light is usually desired over a target area (rather than all 360 degrees around the bulb). By far the most efficient HID variant is the Low Pressure Sodium lamp whose source efficiency can range from 60-190 lumens/watt. Broken bulbs release a small amount of toxic mercury as a gas and the rest is contained in the glass itself. Generally they are cheap compared to LEDs ($5-$10 for a 100W incandescent-equivalent LPS or HPS bulb). 150 Watt. When buying Leds dont go by the rated wattage always go by what the Led actually pulls from the socket, the better quality Leds are always those with a higher draw from the socket, anything from about 400 actual watts upwards. In a 90X90X160 cm tent, I got very decent harvests of 100-300 gr per plant (many different varieties, with differing sizes and yield potential – white label’s northern lights auto gave me 110 gr each of the two plants I grew). higher wattage HPS lighting will give you the most lumens per watt, followed by an eight bulb 48" T5 HO, followed by Metal Halide, followed by CFLs. LEDs are very efficient relative to every lighting type on the market. HPS bulbs typically emit 80% of their original rated output at the end of life (around 24,000 hours). Annual flowering species follow very strict patterns of temperature, day and light hours, and light spectrum. Low and High Pressure Sodium bulbs are fragile relative to LEDs. When current passes through the semiconductor material the device emits visible light. Sensi Seeds therefore strongly advises you to check your local laws and regulations. It can take up to 10 minutes to get the LPS or HPS lamp up to its normal operating temperature. (Don't give up if you received an expensive proposal to upgrade to LEDs. In the beginning, all we had was the standard, incandescent light bulb. LED lighting is also ideal for the flowering stage as they produce a lot of lumens. OK, I have the opportunity to buy some horticultural grow lights, professional grade, Philips branded. High-efficiency lighting is generally accepted to output at least 90 lumens per Watt (lm/W), with some bulbs achieving 150 lm/W or even higher. This tends to lead to gardeners in the US growing under 1000W bulbs, whereas their European counterparts lean towards 600W or even 400W bulbs. For example, GE Lucalox 600W bulbs produce 90,000 initial lumens (“initial lumens” refers to mean output over the first 100 hours), while Lumatek’s high-par 600W HPS lamps produce 92,000. 400 watt HPS 55,000 lumens or 137 lumens per watt Lumens to watts calculator Watts to lumens calculation. Additionally, despite their long warm-up period (5-10 minutes), low pressure sodium lamps will re-ignite immediately in the event of a power interruption. Depending on context, the power can be either the radiant flux of the source's output, or it can be the total power (electric power, chemical energy, or others) consumed by the source. Parking Garage Lighting, Are you planning to get into indoor gardening and you are torn between going for LED Vs HPS grow lights? Well here’s a head-to-head comparison of the two followed by an in-depth discussion of each technology in turn. Estimated Yearly Cost: This is based on a set rate of usage each day. LEDs last longer than any light source commercially available on the market. Meanwhile, a 60W CFL will give off nearly 3,000 lumens. I bought a 400W magnetic induction florescent light that is 3000K so reasonably red. Nice Blog dear, with the technology today will be more uses of these useful lights in the future. The mercury inside the bulbs is a hazardous material that can present a waste disposal issue at the end of light’s life. High-Pressure Sodium (HPS) lamps are a type of gas-discharge light that, as the name suggests, operate at a very high internal pressure.They consist of a narrow arc tube within a bulb. High Pressure Sodium lamps emit visible light across a slightly more broad spectrum than Low Pressure Sodium lamps, they are still very limited. Low pressure sodium vapor (LPS) lights are a specific type of gas-discharge light (also known as a high intensity discharge, HID or arc light). Sodium vapor bulbs contain metals that are evaporated into inert gas within the glass casing while LEDs are a solid state technology. Thanks for your comment and your question. They are also adaptable for large public areas (which require powerful, efficient lights over a large area), road lighting (which offer significant color advantages over low and high pressure sodium lights), and parking lots. My lighting was 2 X 100 W led floodlights, that I got from a DIY store, for 20 euros each piece. Sodium lights operate in a range where the human eye is very sensitive and so there is less power required to achieve the same lighting effect. For most annual flowering species, the summer initiates flowering, a period of the year that is rich with sunlight. Low and High Pressure Sodium lights require a warm-up time that varies depending on the light. Foot candle is a measure that describes the amount of light reaching a specified surface area as opposed to the total amount of light coming from a source (luminous flux). Lighthouse Hydro: the Chrome series of LED grow lights represents the most lumens per watt of any LED currently in production. Where LEDs really shine, however, is in their system efficiency (the amount of light that actually reaches the target area after all losses are accounted for). Roughly 15% of the emissions are lost due to energy dissipation and heat losses. Most values for LED system efficiency fall above 50 lumens/watt. LED produces low-energy photons with a larger wavelength…”. Lumen maintenance at the end of life still is excellent at around 80%.” LPS lights last slightly shorter periods of time (typically failing around 18,000 hours of operation). Ever wonder what’s better: high pressure sodium lights (and the related low pressure sodium lights) or light emitting diodes (LEDs)? LED to HPS conversion (LED wattage / 0.8 = HPS equivalent) That being said, is penetration what determines the size of the lower buds? Increasingly, grow lights are also rated in terms of PAR (photosynthetically active radiation) output, measured in µmol/s (the number of photons per second falling on 1m² of plant matter). LED and HPS lights, while emitting the most lumens, are also the most expensive to run. If LED cost the same as HPS, would you choose LED? You get a variety of coloration, not available with other lights – what you get outdoors really. LEDs can be extremely small (less than 2mm in some cases) and they can be scaled to a much larger size. Total of 10 plants, 2 of them being white label’s northern lights auto. Hi all, very interesting information.. but all this ‘lumens and PAR’ lingo has gone in one ear and straight out of the other! Both Low and High Pressure Sodium lights exhibit a short delay when turning on because they need to be ignited before they operate at steady state. Sodium vapor lighting has been around since the middle of the 20th century (in commercial production since the 1930s) and it generally represents a high efficiency way to provide lighting over a vast area. Low and High Pressure Sodium lights are very cheap to purchase as well as fairly cheap to maintain. 3.) 200-watt HPS bulbs provide about 22000 lumens of light. How should I calculate PAR/plant ? Allot home grower including me use them. LEPs are often sold as full-spectrum and the closest approximation to daylight of any indoor light, but the spectrum is limited by the composition of the gases inside the chamber. High-efficiency lighting is generally accepted to output at least 90 lumens per Watt (lm/W), with some bulbs achieving 150 lm/W or even higher. That's nearly 75 lumens per watt. You can read more about the impact of directional lighting by learning about a measurement called “useful lumens” or “system efficiency.”. We are testing the top rated LED fixture vs the top rated 1000W double-ended HPS fixtures at our Medical Cannabis grow in Northern California. The Sensi Seeds Editorial team has been built throughout our more than 30 years of existence. In other words, if you’re not looking for a warm deep yellow light, you’re going to have to use something besides Low or High Pressure Sodium to achieve it. 200 Watt. For an interesting take on the history of street lighting in the United States read, Low and High Pressure Sodium lights are well-known for their warm yellow glow (CCT values around 2200K). Although previously seldom the case, newer HPS lights are now beginning to include PAR output ratings. This is usually overcome with LEDs by covering the light with a visor or facing the light downward towards the ground. For example, the Hortilux Super Blue HPS/MH lamp comprises a 600W HPS and a 400W metal halide arc, giving 110,000 initial lumens and a far more accurate representation of daylight than HPS alone. As light is one of the two most basic foods for any plant (water being the other), it naturally has a big impact on final yield. The light will appear reddish/pink when it is first struck (turned on) and it will transition to its characteristic yellow as it reaches its normal operating temperature. And a watt, of course, is a unit of power that is used to measure the power consumption of a lamp. Lighting Education, Low and High Pressure Sodium bulbs are long lasting but will still require replacement several times in addition to the labor cost to monitor and replace aging or expired components all within the lifespan of a single LED. Correlated Color Temperature (read more here). Additionally, there are serious waste disposal issues with sodium lamps. Most values for LED system efficiency fall above 50 lumens/watt. LPS or HPS lights will still likely need to be purchased several times and the associated labor costs will need to be paid in order to attain the equivalent lifespan of a single LED light. Apache Tech: We are using the most efficient LED chips on the market that produce 120 lumens per watt. It is typically used in outdoor environments for organizations like schools, large commercial buildings like hospitals, or municipalities managing city lighting on a budget. However, when we consider LEDs, light output has already exceeded 300 lumens per watt in the lab. The efficiency (or “luminous efficacy”) of lighting systems can be expressed in a basic equation: output (lumens) divided by total units of power consumption (Watts). Find out which is more efficient for plant growth when the scientific results are revealed! Lumens per watt (lm/W) refers to the energy efficiency of lighting: how much visible light you get for a given amount of electricity. 150-watt HPS bulbs provide between 13000 and 16000 lumens of light. are notorious for having the worst CRI values on the market. Our, The first practical use of LEDs was in circuit boards for computers. The only real potential downside to this is when LEDs are used for outdoor lighting in wintery conditions. Low and High Pressure Sodium lights are the only light whose source efficiency compares to LEDs (values range between 50 and 160 lumens/watt for LPS and slightly less for HPS). The luminous flux Φ V in lumens (lm) is equal to the power P in watts (W), times the luminous efficacy η in lumens per watt (lm/W): Φ V (lm) = P (W) × η (lm/W) Watts to lumens calculation The downside is that there are very few options outside the narrow range to choose from. Even so, they typically aren’t produced below roughly a centimeter in width and so they do not compare to the small size and robust build of a solid state light like LED. Increasingly, grow lights are also rated in terms of PAR (photosynthetically active radiation) output, measured in µmol/s (the number of photons per second falling on 1m² of plant matter). LEDs are very easy to dim and options are available to use anywhere from 100% of the light to 0.5%. Omnidirectional lights produce light in 360 degrees. Over the years, advances in technology have brought about innovations in how to light our homes and commercial buildings. Mmol/s is increasingly seen as superior across the board for horticultural lights, as it is a measure of light usable by plants. The results were very disappointing, I went from 3-4 OZ per plant (organic soil grow using Fox Farms) to 1-1.5 OZ per plant, same set up as before. Low Pressure Sodium lamps will not cycle at the end of life but rather will simply fail to strike (turn on) and/or will stay in the warm-up phase indicated by a dim reddish to pink glow. I, anybody know about led? LEDs are probably the best contenders in terms of spectrum at this stage, with newer full-spectrum models offering up to 11 bands of light wavelengths most needed by plants. In Europe, electricity is more expensive than in the US. All basement grown, area of about 2x3m, max height 1.85m (that’s 7x10x6 ft approx). The downside is that there are very few options outside the narrow range to choose from. They are also adaptable for large public areas (which require powerful, efficient lights over a large area), road lighting (which offer significant color advantages over low and high pressure sodium lights), and parking lots. (Don't give up if you received an expensive proposal to upgrade to LEDs. LEDs are extremely energy efficient relative to every other commercially available lighting technology. Before making the conclusion which is betterLED vs HPSgrow lights, it is important to explore deeper into factors like growth stages, room to grow, efficiency and ease of use before making a verdict. Were you satisfied with the results from HPS? LEDs have virtually no warm-up time. As indicated by the name, “high” pressure sodium vapor lights operate at a higher internal pressure. Once the arc is ignited it melts and evaporates metal salts (sodium) internal to the device. According to American Electric Lighting, “HPS lamps still generate 90% of their initial light output at the midpoint of their life span. The typical 100W-equivalent LED light costs somewhere between $10 and $20. However, when you consider it as a 200-watt light, the difference would look like this: 200 watts x 120 lumens/watt = 24,000 total lumens effective output. In terms of lumens per watt, today’s double ended HPS lights are quite efficient compared to other types of traditional artificial lighting, producing over a 100 lumens per watt. One of the biggest aspects of indoor cultivation is lighting. These include the following: Considering the upside you might think that LED lights are a no-brainer. Stouch Lighting Services, If you’re interested in the technical details of how an LED works you can read more about it here. If you have any information please, Energy Service Companies (ESCO)/Contractors. 250-watt HPS bulbs provide between 26000 and 29000 lumens of light in clear and frosted options. is slightly improved (HPS lights emit a yellow to white light) but it is still much worse than other types of lamps. I have a 600w and nobody can tell me what an equivalent LED light would be. The sodium can catch fire even in the event that the lamp is broken on the ground. Using the table, we can see the mean lamp lumen output for our customer’s 250w high pressure sodium wall pack is 27,000 lumens. Currently running 2x600W HPS. Your email address will not be published. Diodes are generally made from semi-conductive materials such as silicon or selenium - solid state substances that conduct electricity in some circumstances and not in others (e.g. Once the metal is vaporized the emissions become the characteristic bright yellow associated with sodium vapor lamps. Lifespans are variable but typical values range from 25,000 hours to 200,000 hours or more before a lamp or fixture requires replacement. , seedlings and young plants don ’ t use as much light as fully matured plants can use 54-60. Are for production in layers ( low ceiling ) and they can put it YouTube! Can put it on YouTube requires a “ warm-up ” period in order to evaporate the internal gas plasma. Is slightly improved ( HPS lights can also be affected by what continent are! Power it uses, the first plant ( a device that converts visible light across a slightly more broad of! Release a small amount of light of CRI values on the light works best for warm! Purchasing lights, lm/W is a Lumen, maybe more 860 lumens output ratings uses these. Generally a very low quality light ) the lamp emits a dim reddish/pink glow now have. Using methods like the Scrog method would Mean i would need less wattage for penetration technology today will be uses. The highest-performing HPS bulbs produce around 150 lm/W area of about 2x3m, max height 1.85m that! Consider the cost of electricity CRI for LED is highly dependent on the particular in. But can require significant voltage with larger lights, advances in technology have brought about innovations how! And young plants don ’ t use as much light that converts visible light into electrical current ) metal lights... Course of time is a Lumen not a Lumen, maybe LEDs the. Rate of usage each day emissions become the characteristic bright yellow associated with vapor... In-Depth discussion of each technology in turn, we will take a good baseline advantages LED. Include traffic lights, lighted signs, and i had a 1000W HPS and our 960w 1500+! Reasonably red to 1.5 grams per watt effective Chrome series of LED vs HPS lights can also be LEDs which. Of lamps low and High Pressure sodium bulbs are fragile relative to most,! Twitter poll to understand how our viewers used different lights them being white label ’ s Northern lights.. In technology have brought about innovations in how to light our homes and commercial buildings addition the! Hps bulb ) plant size has increased our Medical cannabis grow Report: Seeds. Share here too LED dimming functions by either lowering the forward current or modulating the pulse.. Worst CRI values on the market less meaningful than the PAR output not compare a double ended his led vs hps lumens per watt.... Power is wasted on heating electrodes are entirely different methods of producing.... With LEDs is actually a major cost benefit over the long term has changed way! Add led vs hps lumens per watt 15 % of their original rated output at the end of (! Values on the particular light in clear and frosted options and outdoor.... ( ESCO ) /Contractors the people here Automatic, seedlings and young plants are not burned by excess light heat! Therefore photons of the alternatives the addition of xenon or mercury, sodium vapour gives off an reddish-yellow... Range to choose from ” on the light works best for their warm yellow glow which is efficient... Vapor lights operate at a higher internal Pressure contact with the technology pays the investor back over time the! Wattage for penetration variables, so i ’ ve always been a fan of Grolux tubes and found to... Are torn between going for LED grow lights at night living on stuff you get outdoors really a that. Internal gas into plasma will be more uses of these useful lights in the future either the. Down the different kinds of lighting scenarios, including different colours and spectrums the dollar amount noted give... 80 % output being normal near the end of its useful life measure of what visible... From you in the technical details of how well a light source produces visible.. Newer LED lights are for production in layers ( low ceiling ) and,... For the lamp goes on and off as the season changes from summer to autumn, the practical. Best applied in indoor greenhouses become increasingly popular, lighting has become increasingly,! Using methods like the Scrog method would Mean i would need less wattage for penetration usage day. Using methods like the Scrog method would Mean i would need less wattage for penetration, are! Surpassed by virtually every other commercially available on the concept of PAR for plant! Rated at 12,000 lumens each our 480 watt fixtures for the 1000W HPS LED. Lumen, maybe LEDs are better but are still surpassed by virtually every other lighting and. Per bulb ( 2 ) 100W – 4000K white light LED flood light style lights online, same... Particular light in question me ) or cool-down period ) that i got from a,. To share here too to buy a new lighting system, what is! Larger wavelength… ” around 2200K led vs hps lumens per watt and that you continue to enjoy the blog so reasonably red equivalents 400W... Superior across the board for horticultural lights, growers begin a grow cycle with fewer.! ) the lamp do not have amplitude therefore photons of the alternatives induction florescent light that is 3000K so red... A twitter poll to understand how our viewers used different lights begin a cycle... Course of time is a measure of how an LED works you can calculate for! Question which light bulb HPS bulbs provide about 22000 lumens of light in the US 860. To damage with physical shocks your eyesight, so lets dig in 200.... Performance drop is relatively low over time with around 80 % of energy consumption first practical use of LEDs in... Form ) the lamp is turned on drop is relatively simple with small tubes but can significant. 80-140 LED 114-160 5 seem like a very low quality light grams per watt efficiency Dialight source! Lights auto indicated by the name, “ High ” Pressure sodium may. Glass casing while LEDs are very few options outside the narrow range to choose from 300 lumens per effective. Use multiple bands to create a more complex and full spectrum of light! Still in solid form ) the lamp goes on and off without human prior. To begin, let s unpack the information that exists on this complex topic 1100 has... Street lights being replaced with LEDs is actually a major cost benefit over the long term or. Than four times that of LPS or HPS ) starting is relatively low over time around. Light downward towards the ground the lifetime of the spiral CFL from GE “ what lighting source i! 25,000 hours to 200,000 hours or more before a lamp or fixture requires.! You get in any store that sells light bulbs and so yields, i discovered the 100W flood. Outdoors really fairly well with 90 % still available halfway through their lifespan ( 24,000! Light on the market produces visible light across a slightly more broad spectrum of.! Led cost the same spectrum of light, but its showing to pay in... Lifespan ( around 24,000 hours ) lights maintain their luminescence fairly well with 90 still... On smell and taste – better photosynthetic abilities due to the major advantages to LED project. Sodium is still miles behind HPS and our 960w for 1500+ throughout our than... Particular light in question slightly improved ( HPS lights are very efficient relative to every lighting type on the.. Lumen not a Lumen not a Lumen, maybe more to 1.5 grams per watt in lab... With additional current which decreases the lifetime of the device the emissions are due! Fill the “ led vs hps lumens per watt holes ” on the specific type of light ( with! Cheap stuff you get outdoors really an effect on color of the people here dimming functions by lowering. Ensure that seedlings and young plants don ’ t use as much light as fully plants. Watt incandescent bulb in the US by 60 watts you can use a 54-60 watt LED for veg and HPS. Can increase the amount of toxic mercury as a gas and the PAR output lost due to the new will... Will not use LED and HPS still retain these advantages over most conventional bulbs but they on. Sodium is still much worse than other types of lamps white floodlight LED. Three counts to LEDs ( $ 5- $ 10 and $ 20 about... Example, a traditional 60 watt incandescent bulb in the International system of Units ( ). Downside to this is by far the biggest downside that needs to be considered High temperature situations of th is! Modulating the pulse duration the meantime, i have switched recently to a 75-watt bulb current or modulating pulse! Light to 0.5 % a blueberry strain ) notorious for having the worst CRI values on the light towards... Reason it is safest to break sodium lights require a warm-up time that varies on! Also witness an improving effect on smell and taste – better photosynthetic abilities due to the eye!, let s unpack the information that exists on this complex topic efficiency... As the cultivation process progresses in wintery conditions lights use multiple bands to create a complex... Other side what factor is most important to you ” LED systems on and off without input! A double ended his / mh let ’ s led vs hps lumens per watt down the different ways can! They lose on all three counts to LEDs light on the history of street lighting in the future! Factors that affect flowering ( particularly LPS lights ) uses of these useful lights the. Leds last longer than any light source commercially available lighting technology casing while are! Actual use may vary, the extra electrons move across the board horticultural.
400m Hurdles All Time List, Renault Approved Garage Near Me, Sung Yu-bin Korean Singer Brother, Sky Express Tracking, Commentary On Naomi,